Shubhrajyoti Datta 107475685a serial: uartps: Move the spinlock after the read of the tx empty
Currently we are doing a read of the status register.
Move the spinlock after that as the reads need not be spinlock
protected. This patch prevents relaxing the cpu with spinlock held.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-10 19:08:31 +02:00
2019-06-03 13:53:20 +02:00
2019-06-02 09:27:44 -07:00
2019-06-02 10:22:38 -07:00
2019-05-31 08:34:32 -07:00
2019-06-02 10:19:39 -07:00
2019-03-10 17:48:21 -07:00
2019-06-02 13:55:33 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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